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NASA develops MacGyver snorkel for astronauts
A key component of the EMU is the Liquid Cooling and Ventilation Garment (LCVG), which is basically a set of long johns with plastic piping stitched into them. Through the tiny pipes run cold water, which keeps the astronaut cool. That’s because, for all the talk about how hot or cold space is, it’s really more like being stuck inside a thermos flask.
Would You Like to Be an Astronaut? | Kids Discover Online
Getting ready for a walk in space starts with the right clothes. That includes a liquid cooling and ventilation garment. This snug-fitting suit is made of spandex, with water-cooling tubes running through it. The tubes carry gases to the main suit’s life-support system. | Would You Like to Be an Astronaut? | Kids Discover